1802530040181 has 32 divisors (see below), whose sum is σ = 2684519956608. Its totient is φ = 1068583622400.

The previous prime is 1802530040177. The next prime is 1802530040183. The reversal of 1802530040181 is 1810400352081.

It is not a de Polignac number, because 1802530040181 - 2² = 1802530040177 is a prime.

It is a super-2 number, since 2×1802530040181² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1802530040183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6038191 + ... + 6329676.

It is an arithmetic number, because the mean of its divisors is an integer number (83891248644).

Almost surely, 2^{1802530040181} is an apocalyptic number.

It is an amenable number.

1802530040181 is a deficient number, since it is larger than the sum of its proper divisors (881989916427).

1802530040181 is a wasteful number, since it uses less digits than its factorization.

1802530040181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12368021.

The product of its (nonzero) digits is 7680, while the sum is 33.

The spelling of 1802530040181 in words is "one trillion, eight hundred two billion, five hundred thirty million, forty thousand, one hundred eighty-one".